Up to date • Future-oriented • Zellentin

From the idea to the property right: We are at your side

With us your invention is in good hands.

Zellentin & Partner is a patent law firm established for more than 60 years with a technical focus in the field of chemistry and chemical engineering, combining tradition and progress convincingly and successfully. Its partners and the firm's team have the highest possible level of legal competence in all matters of intellectual property rights and related fields of law, such as the law on employees inventions or contract law. A special focus is the prosecution and enforcement of intellectual property rights in the successor states of the former Soviet Union.

We offer the best possible service with a high level of professional competence. Full transparency and cost control are a matter of course.

We personally take care of your intellectual property.

Your partners for patents, trademarks and designs.

Dr. Annekathrin Seifert

Our expertise

legal competence

  • patent law
  • utility model law
  • trademark law
  • design law
  • employee inventions law
  • contract law (licences, contracts of cooperation)
  • filing and enforcement of industrial property rights especially in the successor states of the former Soviet Union


technical competence:

  • polymer chemistry
  • formulations
  • organic synthesis
  • inorganic chemistry
  • organic electronics
  • batteries
  • cosmetics
  • detergents and aroma chemicals
  • crop protection
  • industrial organic chemistry
  • chemical engineering
  • cement and hydraulic binders

Office News

US authorize certain money transactions related to patents, trademarks, and copyrights

   |   news

Despite the Russian Harmful Foreign Activities Sanctions, by the enclosed General License No.31 dated May 5, 2022 authorizing certain transactions related to patents, trademarks, and copyrights, the USA have allowed payments related to IP rights,…

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Situation in Russia

   |   news

Monetary compensation in case of governmental order for exploitation suspended; still the hurdles for such a governmental order remain high.

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New Publication - Utility Models, an IP Right 4.0 ?

   |   news

Product lifetimes are becoming shorter and shorter, and in many innovative areas fall short of the time it takes for a patent to be granted. The question arises, whether a utility model registered without substantive examination for protectability is…

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